Home / 865,878,231.61-1,298,686,115.79-235,659,399.70

Finding the Fourth Proportional to 865,878,231.61, 1,298,686,115.79 and 235,659,399.70

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Solution

The fourth proportional to 865,878,231.61, 1,298,686,115.79 and 235,659,399.70 is: 353,453,383.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,878,231.61 : 1,298,686,115.79 = 235,659,399.70 : x
  2. Step 2: Convert to fraction form
    865,878,231.61/1,298,686,115.79 = 235,659,399.70/x
  3. Step 3: Cross multiply
    865,878,231.61x = 1,298,686,115.79 × 235,659,399.70
  4. Step 4: Simplify right side
    865,878,231.61x = 306,047,590,445,796,096
  5. Step 5: Solve for x
    x = 306,047,590,445,796,096/865,878,231.61
  6. Step 6: Final answer
    x = 353,453,383.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.